1 // RUN: %clang_cc1 -faltivec -triple powerpc64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s 2 3 #include <stdarg.h> 4 5 struct test1 { int x; int y; }; 6 struct test2 { int x; int y; } __attribute__((aligned (16))); 7 struct test3 { int x; int y; } __attribute__((aligned (32))); 8 struct test4 { int x; int y; int z; }; 9 struct test5 { int x[17]; }; 10 struct test6 { int x[17]; } __attribute__((aligned (16))); 11 struct test7 { int x[17]; } __attribute__((aligned (32))); 12 13 // CHECK: define void @test1(i32 signext %x, i64 %y.coerce) 14 void test1 (int x, struct test1 y) 15 { 16 } 17 18 // CHECK: define void @test2(i32 signext %x, [1 x i128] %y.coerce) 19 void test2 (int x, struct test2 y) 20 { 21 } 22 23 // CHECK: define void @test3(i32 signext %x, [2 x i128] %y.coerce) 24 void test3 (int x, struct test3 y) 25 { 26 } 27 28 // CHECK: define void @test4(i32 signext %x, [2 x i64] %y.coerce) 29 void test4 (int x, struct test4 y) 30 { 31 } 32 33 // CHECK: define void @test5(i32 signext %x, %struct.test5* byval align 8 %y) 34 void test5 (int x, struct test5 y) 35 { 36 } 37 38 // CHECK: define void @test6(i32 signext %x, %struct.test6* byval align 16 %y) 39 void test6 (int x, struct test6 y) 40 { 41 } 42 43 // This case requires run-time realignment of the incoming struct 44 // CHECK-LABEL: define void @test7(i32 signext %x, %struct.test7* byval align 16) 45 // CHECK: %y = alloca %struct.test7, align 32 46 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64 47 void test7 (int x, struct test7 y) 48 { 49 } 50 51 // CHECK-LABEL: define void @test1va(%struct.test1* noalias sret %agg.result, i32 signext %x, ...) 52 // CHECK: %y = alloca %struct.test1, align 4 53 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap 54 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[CUR]], i64 8 55 // CHECK: store i8* %[[NEXT]], i8** %ap 56 // CHECK: [[T0:%.*]] = bitcast i8* %[[CUR]] to %struct.test1* 57 // CHECK: [[DEST:%.*]] = bitcast %struct.test1* %y to i8* 58 // CHECK: [[SRC:%.*]] = bitcast %struct.test1* [[T0]] to i8* 59 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DEST]], i8* [[SRC]], i64 8, i32 4, i1 false) 60 struct test1 test1va (int x, ...) 61 { 62 struct test1 y; 63 va_list ap; 64 va_start(ap, x); 65 y = va_arg (ap, struct test1); 66 va_end(ap); 67 return y; 68 } 69 70 // CHECK-LABEL: define void @test2va(%struct.test2* noalias sret %agg.result, i32 signext %x, ...) 71 // CHECK: %y = alloca %struct.test2, align 16 72 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap 73 // CHECK: %[[TMP0:[^ ]+]] = ptrtoint i8* %[[CUR]] to i64 74 // CHECK: %[[TMP1:[^ ]+]] = add i64 %[[TMP0]], 15 75 // CHECK: %[[TMP2:[^ ]+]] = and i64 %[[TMP1]], -16 76 // CHECK: %[[ALIGN:[^ ]+]] = inttoptr i64 %[[TMP2]] to i8* 77 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[ALIGN]], i64 16 78 // CHECK: store i8* %[[NEXT]], i8** %ap 79 // CHECK: [[T0:%.*]] = bitcast i8* %[[ALIGN]] to %struct.test2* 80 // CHECK: [[DEST:%.*]] = bitcast %struct.test2* %y to i8* 81 // CHECK: [[SRC:%.*]] = bitcast %struct.test2* [[T0]] to i8* 82 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DEST]], i8* [[SRC]], i64 16, i32 16, i1 false) 83 struct test2 test2va (int x, ...) 84 { 85 struct test2 y; 86 va_list ap; 87 va_start(ap, x); 88 y = va_arg (ap, struct test2); 89 va_end(ap); 90 return y; 91 } 92 93 // CHECK-LABEL: define void @test3va(%struct.test3* noalias sret %agg.result, i32 signext %x, ...) 94 // CHECK: %y = alloca %struct.test3, align 32 95 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap 96 // CHECK: %[[TMP0:[^ ]+]] = ptrtoint i8* %[[CUR]] to i64 97 // CHECK: %[[TMP1:[^ ]+]] = add i64 %[[TMP0]], 15 98 // CHECK: %[[TMP2:[^ ]+]] = and i64 %[[TMP1]], -16 99 // CHECK: %[[ALIGN:[^ ]+]] = inttoptr i64 %[[TMP2]] to i8* 100 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[ALIGN]], i64 32 101 // CHECK: store i8* %[[NEXT]], i8** %ap 102 // CHECK: [[T0:%.*]] = bitcast i8* %[[ALIGN]] to %struct.test3* 103 // CHECK: [[DEST:%.*]] = bitcast %struct.test3* %y to i8* 104 // CHECK: [[SRC:%.*]] = bitcast %struct.test3* [[T0]] to i8* 105 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DEST]], i8* [[SRC]], i64 32, i32 16, i1 false) 106 struct test3 test3va (int x, ...) 107 { 108 struct test3 y; 109 va_list ap; 110 va_start(ap, x); 111 y = va_arg (ap, struct test3); 112 va_end(ap); 113 return y; 114 } 115 116 // CHECK-LABEL: define void @test4va(%struct.test4* noalias sret %agg.result, i32 signext %x, ...) 117 // CHECK: %y = alloca %struct.test4, align 4 118 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap 119 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[CUR]], i64 16 120 // CHECK: store i8* %[[NEXT]], i8** %ap 121 // CHECK: [[T0:%.*]] = bitcast i8* %[[CUR]] to %struct.test4* 122 // CHECK: [[DEST:%.*]] = bitcast %struct.test4* %y to i8* 123 // CHECK: [[SRC:%.*]] = bitcast %struct.test4* [[T0]] to i8* 124 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DEST]], i8* [[SRC]], i64 12, i32 4, i1 false) 125 struct test4 test4va (int x, ...) 126 { 127 struct test4 y; 128 va_list ap; 129 va_start(ap, x); 130 y = va_arg (ap, struct test4); 131 va_end(ap); 132 return y; 133 } 134 135 // CHECK-LABEL: define void @testva_longdouble(%struct.test_longdouble* noalias sret %agg.result, i32 signext %x, ...) 136 // CHECK: %y = alloca %struct.test_longdouble, align 16 137 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap 138 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[CUR]], i64 16 139 // CHECK: store i8* %[[NEXT]], i8** %ap 140 // CHECK: [[T0:%.*]] = bitcast i8* %[[CUR]] to %struct.test_longdouble* 141 // CHECK: [[DEST:%.*]] = bitcast %struct.test_longdouble* %y to i8* 142 // CHECK: [[SRC:%.*]] = bitcast %struct.test_longdouble* [[T0]] to i8* 143 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DEST]], i8* [[SRC]], i64 16, i32 8, i1 false) 144 struct test_longdouble { long double x; }; 145 struct test_longdouble testva_longdouble (int x, ...) 146 { 147 struct test_longdouble y; 148 va_list ap; 149 va_start(ap, x); 150 y = va_arg (ap, struct test_longdouble); 151 va_end(ap); 152 return y; 153 } 154 155 // CHECK-LABEL: define void @testva_vector(%struct.test_vector* noalias sret %agg.result, i32 signext %x, ...) 156 // CHECK: %y = alloca %struct.test_vector, align 16 157 // CHECK: %[[CUR:[^ ]+]] = load i8*, i8** %ap 158 // CHECK: %[[TMP0:[^ ]+]] = ptrtoint i8* %[[CUR]] to i64 159 // CHECK: %[[TMP1:[^ ]+]] = add i64 %[[TMP0]], 15 160 // CHECK: %[[TMP2:[^ ]+]] = and i64 %[[TMP1]], -16 161 // CHECK: %[[ALIGN:[^ ]+]] = inttoptr i64 %[[TMP2]] to i8* 162 // CHECK: %[[NEXT:[^ ]+]] = getelementptr inbounds i8, i8* %[[ALIGN]], i64 16 163 // CHECK: store i8* %[[NEXT]], i8** %ap 164 // CHECK: [[T0:%.*]] = bitcast i8* %[[ALIGN]] to %struct.test_vector* 165 // CHECK: [[DEST:%.*]] = bitcast %struct.test_vector* %y to i8* 166 // CHECK: [[SRC:%.*]] = bitcast %struct.test_vector* [[T0]] to i8* 167 // CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[DEST]], i8* [[SRC]], i64 16, i32 16, i1 false) 168 struct test_vector { vector int x; }; 169 struct test_vector testva_vector (int x, ...) 170 { 171 struct test_vector y; 172 va_list ap; 173 va_start(ap, x); 174 y = va_arg (ap, struct test_vector); 175 va_end(ap); 176 return y; 177 } 178 179
